UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GMyN5VtaDSBpJwTkeE1CVQNc1qJ3UB38XT1EH1h066g=' 
WHERE 
  key_id = '51a70d617738de7502ec1995bc131809b6ed0ab0e3e7beb30c39ed3025c48c2d' 
  AND (
    token = 'GMyN5VtaDSBpJwTkeE1CVQNc1qJ3UB38XT1EH1h066g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )